Add encryption role and related files

ansible/roles/encryption/molecule/default/converge.yml

@@ -0,0 +1,8 @@
+---
+- name: Converge
+  hosts: all
+  gather_facts: true
+  tasks:
+    - name: Include encryption role
+      ansible.builtin.include_role:
+        name: "encryption"

ansible/roles/encryption/molecule/default/molecule.yml

@@ -0,0 +1,12 @@
+---
+driver:
+  name: podman
+platforms:
+  - name: instance
+    image: ubuntu:20.04
+    pre_build_image: true
+    privileged: true
+provisioner:
+  name: ansible
+verifier:
+  name: ansible

ansible/roles/encryption/molecule/default/prepare.yml

@@ -0,0 +1,10 @@
+---
+- name: Prepare
+  hosts: all
+  gather_facts: false
+  tasks:
+    - name: Update cache # noqa no-changed-when
+      ansible.builtin.raw: apt update
+
+    - name: Install required packages # noqa no-changed-when
+      ansible.builtin.raw: apt install -y python3 sudo cron